package summer_vacation.xuqianlan;

/**
 * Created by lenovo on 2015/8/25.
 */
public class Test_23 {
    public static void main(String[] args) {
       int s=78;
        s=s/10;
        switch (s){
            case 1:
            case 2:
            case 3:
            case 4:
            case 5:
                System.out.println("E");
                break;
            case 6:
                System.out.println("D");
                break;
            case 7:
                System.out.println("C");
                break;
            case 8:
                System.out.println("B");
                break;
            default:
                System.out.println("A");
        }

    }
}
